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- W3024449097 abstract "Three-dimensional all-inorganic perovskite solar cells have been built using vertically aligned conductive zinc oxide nanorods as the electron-transport layer and optical waveguide. Yttrium doping improved the conductivity and hence the electron transportation of the ZnO, achieving a 3-fold improvement of the solar cell efficiency. The vertically aligned nanorods acted as optical waveguides and a scaffold, which improved photoabsorption of the perovskite semiconductor by increasing the layer thickness. Our device structure was completed with an exfoliated multilayer graphite back contact for effective hole extraction. The ZnO was most significantly modified by nanometer scale coatings of TiO2 in order to passivate the surface and reduce charge recombination, as measured by photoluminescence spectroscopy. This led to greatly improved charge transfer. This strategy led to an overall nine times enhancement in the solar cell efficiency, yielding a competitive top value of 5.83%. More importantly, the all-inorganic solar cells demonstrated excellent stability, showing no decline in initial performance after 1000 h storage in ambient conditions. This work presents yttrium doped ZnO nanorods as a suitable replacement for mesoporous TiO2, achieving a high short circuit current of 10.5 mA cm–2 for CsPbBr3 perovskite devices." @default.
- W3024449097 created "2020-05-21" @default.
- W3024449097 creator A5053556556 @default.
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- W3024449097 date "2020-05-13" @default.
- W3024449097 modified "2023-09-25" @default.
- W3024449097 title "Solar Cells with High Short Circuit Currents Based on CsPbBr<sub>3</sub> Perovskite-Modified ZnO Nanorod Composites" @default.
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- W3024449097 doi "https://doi.org/10.1021/acsanm.0c00888" @default.
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